Users Guide

Assigning an IP Address to a VLAN....................................................................................................................... 810
Conguring Native VLANs............................................................................................................................................ 810
Enabling Null VLAN as the Default VLAN.................................................................................................................... 811
57 VLT Proxy Gateway.................................................................................................................................. 812
Proxy Gateway in VLT Domains....................................................................................................................................812
Guidelines for Enabling the VLT Proxy Gateway...................................................................................................813
Enabling the VLT Proxy Gateway........................................................................................................................... 814
LLDP Organizational TLV for Proxy Gateway....................................................................................................... 814
Conguring an LLDP VLT Proxy Gateway...................................................................................................................817
Conguring a Static VLT Proxy Gateway.....................................................................................................................817
58 Virtual Link Trunking (VLT).......................................................................................................................818
Overview......................................................................................................................................................................... 818
VLT on Core Switches............................................................................................................................................. 819
Enhanced VLT...........................................................................................................................................................819
VLT Terminology.............................................................................................................................................................820
Congure Virtual Link Trunking.................................................................................................................................... 820
Important Points to Remember............................................................................................................................. 820
Conguration Notes................................................................................................................................................ 822
Primary and Secondary VLT Peers........................................................................................................................824
RSTP and VLT..........................................................................................................................................................825
VLT Bandwidth Monitoring.....................................................................................................................................825
VLT and Stacking.....................................................................................................................................................825
VLT and IGMP Snooping.........................................................................................................................................825
VLT IPv6....................................................................................................................................................................826
VLT Port Delayed Restoration................................................................................................................................826
PIM-Sparse Mode Support on VLT.......................................................................................................................826
VLT Routing .............................................................................................................................................................828
Non-VLT ARP Sync................................................................................................................................................. 830
RSTP Conguration.......................................................................................................................................................830
Preventing Forwarding Loops in a VLT Domain................................................................................................... 830
Sample RSTP Conguration....................................................................................................................................831
Conguring VLT........................................................................................................................................................ 831
PVST+ Conguration..................................................................................................................................................... 841
Sample PVST+ Conguration................................................................................................................................. 841
eVLT Conguration Example........................................................................................................................................ 842
eVLT Conguration Step Examples.......................................................................................................................842
PIM-Sparse Mode Conguration Example................................................................................................................. 844
Verifying a VLT Conguration...................................................................................................................................... 845
Additional VLT Sample Congurations........................................................................................................................ 848
Troubleshooting VLT......................................................................................................................................................849
Reconguring Stacked Switches as VLT.....................................................................................................................851
Specifying VLT Nodes in a PVLAN...............................................................................................................................851
Association of VLTi as a Member of a PVLAN.....................................................................................................852
MAC Synchronization for VLT Nodes in a PVLAN..............................................................................................852
PVLAN Operations When One VLT Peer is Down...............................................................................................852
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